How to make a variant selection required on checkout upsells

Overview

If your upsell products have multiple variants (e.g., size, color), requiring customers to select a variant ensures they get the right product before checkout. UpsellPlus allows you to enforce this selection in the checkout process.

Step-by-Step Guide

Simply tick the option that says Require a selection when you use the manual upselling method on your checkout upsells (shown below).



Note: The placeholder's name (size, color, etc.) will depend on the first variant/option name from your product's admin.

For the screenshots below, you'll see that the placeholder says ''Size'' because that's the first option on the product admin:





If you want to match the variant of a checkout upsell with the variant of the product in cart, you can follow this article How to use Variant Smart Rules

Key Tips
Use Clear Images & Descriptions: Ensure customers can easily distinguish between variants.
Test Different Default Variants: See if pre-selecting a popular variant improves conversions.

Related Articles
How to Show an Upsell Based on Cart Value
How to Enable Checkout Upsells Using the Checkout Editor

Updated on: 11/02/2025